A simple analysis for magnetic behaviors of exchange-coupled granular/continuous perpendicular magnetic recording media

作者：Kitakami O^*; Shimatsu T; Muraoka H

来源：Japanese Journal of Applied Physics, 2002, 41(4B): L455-L457.

DOI：10.1143/JJAP.41.L455

• perpendicular magnetic recording
• coupled granular/continuous film
• shearing
• magnetization reversal unit

We present a simple analysis for magnetic behaviors of exchange-coupled granular/continuous (CGC) perpendicular magnetic recording media. The analysis shows how the CGC media behave against a vertical external field. The slope of the magnetization curves is governed by the thickness ratio (gamma) of a continuous layer t(c) to a granular layer t(g) and the domain wall energy sigma(w) of the continuous layer. The size of a magnetization reversal unit which would dominate the recording resolution and thermal stability can be easily evaluated by the present analysis.

• 出版日期2002-4-15